1. A type of movement of substances across the cell membrane that requires no energy is --

A. cell mediated movement

B. facilitated diffusion

C. active transport

D. receptor protein action

Answers

Answer 1

Answer:

B. facilitated diffusion

Explanation:


Related Questions

How is atmospheric carbon in the form of CO2 converted into a molecule that
is usable to all organisms?

A. By combustion of fossil fuels

B. By the decomposition of dead and decaying matter

C. By production of ATP through cell respiration

D. By the making of glucose through photosynthesis
WILL MARK BRAINLIEST

Answers

Answer:

D. By the making of glucose through photosynthesis

Explanation:

Photosynthesis is a chemical reaction that results in glucose. One of the reactants is CO2. So, the plants take in CO2, water, and sunlight. This produces oxygen and glucose. This is part of the carbon cycle and is the way that CO2 becomes usable for consumers.

An atom that has twelve protons in its nucleus has an atomic number of:
24
13
12
none of the above

Answers

Answer:

Protons-12, Electrons-12, Neutrons-12

Answer

12 would be the correct answer

what by-product of anaerobic respiration makes this possible

Answers

Answer:

The end products of anaerobic respiration are Lactic acid or ethanol and ATP molecules. Anaerobic respiration takes place in the absence of oxygen and is seen in lower animals. During the process of Anaerobic Respiration in prokaryotes, there is a breakdown of glucose to produce energy for cellular activities.

Explanation:

rank up

erythropoietin is a hormone produced by the _______________ to increase the rate of production and maturation of erythrocyte progenitor and erythroblast cells.

Answers

Answer: Kidneys

Explanation:

Both the kidneys and the liver produce erythropoietin. If only one answer is allowed, I would choose kidney because it produces nearly 85 percent of it.

Spelling and vocabulary words:
Organisms
Reproduction
Structure
Substances
Unicellular
Osmosis
Division
Photosynthesis
Organ
Function
Membrane
Cytoplasm
Nucleus
Chloroplast
Chlorophyll

Can y'all help me find the definitions of these words, it'd for my science exam and I'm revising. I can't search them up rn cuz I have to go to bed and I don't wanna get in trouble and I really wanna get this done.

Thxx will provide big points and brainiest for first answer​

Answers

Organism
An animal or plant a single life form

Reproduction
Reproduction is production of a baby/offspring

Structure
To construct following a plan

Substances
A physical matter where is something is made

Unicellular
A single celled organism

Osmosis
the movement of water molecules

Sorry. That’s all I can do I have to get to class Good luck!

Is the pelvic girdle part of the axial or appendicular skeletal system?

Answers

Answer:

b. Appendicular

Explanation:

Answer:

B

Explanation:

Plato Anatomy 2.3 content quiz

What can you conclude about two thermometers, one which is at 25 ˚C and the other which is at 20 ˚C?
SELECT AN ANSWER

A- The kinetic energy of the 20 ˚C thermometer is greater than the kinetic energy of the 25 ˚C thermometer.

B- The particles in the 20 ˚C thermometer are moving faster than in the 25 ˚C thermometer.

C- The particles in the 25 ˚C thermometer are moving faster than in the 20 ˚C thermometer.

D- Both thermometers have particles moving at the same speed.
SUBMIT

0%

Answers

the answer is C because more high temperature then there is more energy, when there is more energy so the kinetic energy will rise too

Why isnt there a solar eclipse during every new moon?

Answers

Answer:

Eclipses do not happen at every new moon, of course. This is because the moon's orbit is tilted just over 5 degrees relative to Earth's orbit around the sun. For this reason, the moon's shadow usually passes either above or below Earth, so a solar eclipse doesn't occur.

Explanation:

Make this in own words if it's for a test or smth

Explanation:

Solar eclipse don't happen every new moon, because the moon's orbit tilted over degrees relative to the earth's orbit around the sun. The moon's shadow usually passes either above or below earth, so therefore that is the reason a solar eclipse does not occur every new moon

one of the most common chromosomal disorders is ________ in which a baby has ________________.

Answers

Answer:

One of the most common chromosomal disorders is Down syndrome. Down syndrome happens when abnormal cell division results in extra genetic material from chromosome 21, too few chromosomes, or part of a chromosome may be missing. The difficulties of Down syndrome include hearing and vision weakness, weak auditory memory, fine motor skill impairment, short attention span with distractibility. Having Down syndrome can increase the risk of developing Alzheimer's disease. Having down syndrome can be associated with other health conditions such as ear infections, dental problems, endocrine problems, and seizures.

IMPORTANCE OF TRANSPORT MECHANISMS IN CELLULAR PROCESSES.

Answers

Explanation:

Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements. Much of a cell's supply of metabolic energy may be spent maintaining these processes.

what are the functions of the kidney

Answers

Basic Functions
The kidneys are essential for homeostasis (maintaining a constant internal environment) of the body's extracellular fluids. Their basic functions include:
1. Regulation of extracellular fluid volume. The kidneys work to ensure an adequate quantity of plasma to keep blood flowing to vital organs.

2. Regulation of osmolarity. The kidneys help keep extracellular fluid from becoming too dilute or concentrated with respect to the solutes carried in the fluid.

3. Regulation of ion concentrations. The kidneys are responsible for maintaining relatively constant levels of key ions including sodium, potassium and calcium.

4. Regulation of pH. The kidneys prevent blood plasma from becoming too acidic or basic by regulating ions.

5. Excretion of wastes and toxins. The kidneys filter out a variety of water-soluble waste products and environmental toxins into the urine for excretion.

6. Production of hormones. The kidneys produce erthryopoietin, which stimulates red blood cell synthesis, and renin, which helps control salt and water balance and blood pressure. They are also involved in regulating plasma calcium and glucose levels.

Photosynthesis requires light, water, carbon dioxide, and light absorbing
______.

Answers

Answer:

To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. By taking in water (H2O) through the roots, carbon dioxide (CO2) from the air, and light energy from the Sun, plants can perform photosynthesis to make glucose (sugars) and oxygen (O2).

Explanation:

I didt really understand your question.

Answer:

chlorophyll

Explanation:

During light reaction, the chlorophyll entraps light and the solar energy is converted into chemical energy in the form of ATP molecules.

How does cellular differentiation benefit complex organisms?

Answers

Answer:

This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness of cells.

Explanation:

Answer:

Cellular differentiation is beneficial and important for complex organisms.

Explanation:

Cellular differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells.

an individual with a antigens on their rbcs but no b antigens has which abo blood type?

Answers

Answer:

BLOOD TYPE O

Explanation:

The ABO Blood Group

People can also have both A and B antigens on their erythrocytes, in which case they are blood type AB. People with neither A nor B antigens are designated blood type O.

When a biological vector is used, which process is used to ensure there are large amounts of DNA?
cloning
electrophoresis
genetic engineering
gene isolation

Answers

Answer:

*CLONING

Explanation:

it makes the most sense

In Tehran v US ex.rel. Shott (1966), the US Supreme Court said the purpose of a trial was to

Answers

Answer:

to determine the truth.

HELP!
Of the following, what is the most important for ATP production?
A) amount of sunlight
B) carbon dioxide
C) concentration water concentration
D) glucose concentration
E) oxygen concentration​​

Answers

Answer:

I THINK ITS A

im  not sure tho

how do I write the equation P^2 = kA^3, so that I'm solving for the variable K?

Answers

Answer:

k = (P^2)/(A^3)

Explanation:

Step 1: Flip the equation.

[tex]kA^3 = P^2[/tex]

Step 2: Divide both sides by A^3.

[tex]\frac{kA^3}{A^3} = \frac{P^2}{A^3}[/tex] [tex]k = \frac{P^2}{A^3}[/tex]

Therefore, the answer is [tex]k = \frac{P^2}{A^3}[/tex].

which is a flap of tissue that folds down to close off the entrance to the larynx and trachea when you swallow?

Answers

Epiglottis I believe it to be called my guy

Meaning of:
1. Plant Stranglers.
2. Ammonification
3.Nitrification​

Answers

Answer:

1. Plant strangers; named for their pattern of growth upon host trees, which often results in the host's death. example includes strangers fig

2. Ammonification refers to chemical reactions in which amino groups (NH2) associated with organic forms of nitrogen are converted into ammonia (NH3) or ammonium (NH4+).

3. Nitrification is the step in the nitrogen cycle that links the oxidation of ammonia (produced from the degradation of organic matter) to the loss of fixed nitrogen in the form of dinitrogen gas.

Explanation:

Sorry some of the answer are from internet but please mark brainliest

How do prions make more of themselves?

Answers

The problem begins when some of the prion proteins are misfolded into an infectious form, which causes misfolding in the native protein, increasing the amount of aggregates and causing more and more of the native form to misfold.

brainiest pls?

what is an example of a prokaryote that does binary fission?

Answers

Answer:

Prokaryotes such as E. coli, Archaea as well as eukaryotes such as euglena reproduce through binary fission. Binary fission is a form of cell division in eukaryotes. In prokaryotes, it is a form of asexual reproduction Binary Fission in Bacteria

Explanation:

Frank is putting money into a savings account. He starts with $750 in the savings account, and each week he adds $40.

Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Frank has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.

Answers

Answer:

750+(40xW)=S

750+(40x17)=----------

Explanation:

How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants

Answers

Answer:

B

Explanation:

QUESTION:

How can detritivores be beneficial to the environment?

O A) allow predation to occur

O B) rid waste and dead matter

O C) provide food for autotrophs

O D) facilitate photosynthesis in plants

ANSWER:

O A) allow predation to occur

O A) allow predation to occurO B) rid waste and dead matter

O C) provide food for autotrophs.

O D) facilitate photosynthesis in plants

__________________

CARRY ON LEARNING

CAN YOU BRAINLEST ME PLEASE

Which of the following is a common characteristic of prokaryotic cells? Select all that apply.
A. plasma membrane
B. nucleus
C. flagella
D. cell wall

Answers

The answer is D, A, C

Nucleus is an exception in a prokaryotic cell. Thus, option A, C and D are correct.

What are the characteristics of a prokaryotes?

Prokaryotes are microscopic and primitive cells. Their nucleus is not well developed.

Prokaryotes lack cell organelles like mitochondria, endoplasmic reticulum, Golgi body etc in their cell structure.

Prokaryotes are simple in assembly and are therefore unicellular. A single cell performs all the functions in the body.

Prokaryotes have single chromosome present in their structure. Their DNA is found in the cytoplasm.

Prokaryotes have cilia and flagella for locomotion.

Prokaryotic organisms are found extensively everywhere on earth. They have unique ability to survive in the harsh environments.

Prokaryotes are beneficial in many ways:

Carry out nitrogen fixation.Important for human gut for the absorption of vitamin B12.Helpful in fermentation process.Important in bioremediation

Therefore, prokaryotes are important in many ways to the ecosystem.

Learn more about prokaryotes, here:

https://brainly.com/question/1884631

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Which type of fossil can help is understand an organisms activity during its time?

Answers

Probably the footprint

which famous composition duo was known for creating many influential operettas?

Answers

The famous composition duo that existed in history and work to create an operettas that is very famous  are Gilbert and Sullivan.

Operetta can be regarded as a form of theatre as well as  a genre of light opera. This concept entails spoken dialogue as well as songs

Gilbert and Sullivan were men that work hand in hand to create influential operettas in history.

They were a famous Victorian-era theatrical that engaged in partnership of dramatist , they work hand in hand to achieve a great fit around 1830s.

Therefore, Gilbert and Sullivan are great men in operetta world

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promoters of many genes have regions that are rich in adenines and thymines. what is the most likely reason for this?

Answers

Answer:

Many promoters of a hypothetical conserved gene have mostly adenines and thymines. What is the most likely reason for this high proportion of adenines and thymines? This is the region for separating template and non-template strands, and A-T base pairs are easier to separate than G-C base pairs.

Explanation:

drag each label into the appropriate category to designate whether the given item describes elements of gray or white matter of the spinal cord.

Answers

In regards to the composition of the spinal cord, the grey matter is the centermost substance, whilst white matter is located towards the peripherals.

Though I could not locate the labels and categories online in order to properly classify each one, I can provide a general overview of the subject to aid in your understanding and ability to complete the project.

The spinal cord acts as a path through which billions of signals from the brain travel to reach the rest of the body. This pathway is occupied by grey and white matter, which are the representation of the billions of neurons that make up the central nervous system.

Grey matter is located towards the center of the spinal cord and is often described to be in the shape of a butterfly. Grey matter is the accumulation of nerve cell bodies and unmyelinated axons. In contrast, white matter makes up the surrounding area to that of grey matter and corresponds to the myelinated axons of various nerve cells. The white coloration of the white matter is due to the myelin itself.

To learn more visit:

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In what stage do cells spend most of their life

Answers

Answer:

the interphase stage

info at

https://www.genome.gov/genetics-glossary/Cell-Cycle#:~:text=A%20cell%20spends%20most%20of,mitosis%2C%20and%20completes%20its%20division.

happy halloween <3

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